I'm about to buy a 10" JL W7 with a JL 500 watt 2 channel amp. It's a great deal but have found out that the amp cuts out when you turn the volume up. It's been awhile since I've trouble shooted anything like this and I can't remember what it is. It works fine after you turn it down and back up again. I wanna find out what it is before I buy it. Thanks.